<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <!-- <div class="title-container">
        <h3 class="title">Login Form</h3>
      </div> -->
      <!-- 放置标题图片 @是设置的别名-->
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="">
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="请输入你的手机号"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入你的密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        @click="handleLogin"
      >登录</el-button>

      <div class="tips">
        <span style="margin-right:20px;">账号: 13800000002</span>
        <span> 密码: 123456</span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { validMobile } from '@/utils/validate'
// import { reqLogin } from '@/api/user'
import { mapActions } from 'vuex'

export default {
  name: 'Login',
  data() {
    // const validateUsername = (rule, value, callback) => {
    //   if (!validUsername(value)) {
    //     callback(new Error('请输入正确的用户名'))
    //   } else {
    //     callback()
    //   }
    // }

    const validateMobile = (rule, value, callback) => {
      if (!validMobile(value)) {
        callback(new Error('请输入正确的手机号格式'))
      } else {
        callback()
      }
    }

    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      loginRules: {
        mobile: [
          // 非空+自定义校验  合写
          // { required: true, trigger: 'blur', validator: validateUsername }
          // 以下可读性更高(合作)
          { required: true, trigger: ['blur', 'change'], message: '手机号不能为空' },
          { validator: validateMobile, trigger: ['blur', 'change'] }
        ],
        password: [
          // { required: true, trigger: 'blur', validator: validatePassword }
          { required: true, trigger: ['blur', 'change'], message: '密码不能为空' },
          // 需求: 6-12位密码
          { min: 6, max: 12, message: '请输入6-12位密码', trigger: ['blur', 'change'] }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    ...mapActions('user', ['login']),
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      // console.log('发请求')
      // 整个表单的校验 避免无效的请求
      this.$refs.loginForm.validate((flag) => {
        if (!flag) return
        console.log('可以发请求了')
        // 请求自己的服务器 'http://localhost:8888/api/sys/login'
        // 目标: 'http://ihrm-java.itheima.net/api/sys/login'

        // const res = await this.$request({
        //   method: 'post',
        //   url: 'http://localhost:8888/api/sys/login',
        //   data: this.loginForm
        // })
        // console.log(res)

        // const res = await reqLogin(this.loginForm)
        // console.log(res)

        // 登录的action => 异步
        // 保证登录请求成功了 ,  再跳转 /
        // 等下面这行异步的代码 完成以后,  再去做其他事
        // promise 封装

        this.loading = true
        this.login(this.loginForm).then(() => {
          this.$message.success('恭喜, 成功登录')
          this.$router.push('/')

          // this.loading = false
        }).catch((err) => {
          console.log(err)
          // this.$message.error('登录失败')

          // this.loading = false
        }).finally(() => {
          // 无论成功还是失败都会执行
          this.loading = false
        })

        // 需求: 点击登录, 发送请求 => 请求操作(异步)结束以后, 才能进入首页
        // 核心: 等某个异步操作结束之后, 才能做某件事

        // this.$router.push('/')

        // 访问token
        // this.$store.state.user.token
        // this.$store.getters.token
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #407ffe;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  // 在我们css中, 如果你要使用@指代src ,请在前面加~(不然不认识)
  background-image: url("~@/assets/common/login.jpg"); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  // .el-form-item {
  //   border: 1px solid rgba(255, 255, 255, 0.1);
  //   background: rgba(0, 0, 0, 0.1);
  //   border-radius: 5px;
  //   color: #454545;
  // }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.9); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }

  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }

  .el-form-item__error {
    color: #fff;
     font-size: 14px;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
